That PPA wants to upgrade the packages 'gnome-control-center ' and 'libglib2.0-0 ' among others I am sure, but the system does not want to upgrade them because it may break other packages. Usually this is not a problem with a PPA because it handles all dependencies. It may be a poorly put together PPA though, I am not sure. Also consider the fact that its not 'stable' but 'testing'.
Thanks for reporting this though, and feel free to report any other bugs you may find. Closing. --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Changed in: update-manager (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/902860 Title: Could not calculate the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/902860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs